问题
填空题
棘皮动物的次生体腔宽大，一部分形成（）和（），较为特殊，由（）法形成。
答案
参考答案：水管系统；围血系统；肠体腔
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棘皮动物的次生体腔宽大，一部分形成（）和（），较为特殊，由（）法形成。
参考答案：水管系统；围血系统；肠体腔
| 完型填空 | |||
| Jim worked in 1 office in a small town. One day his boss 2 to him, "Jim, I want you 3 go to Paris, to an old man in a shop. His name's Mr Black. Here's the address(地址)." Jim went to Paris by train. He arrived 4 a bus stop there. I'll find it 5 . But half 6 hour later he was still 7 for it, so he stopped and asked an old man. He said, "Just go down this road, turn right at the traffic lights. It's on the right side of the street. "Jim went and 8 it. Two months later he went to the same city. But again he didn't 9 the office, so he asked someone he met. It was the same man! He was very 10 and asked "Are you still looking for that place? " | |||
| ( )1. A. a ( )2. A. say ( )3. A. to ( )4. A. in ( )5. A. easy ( )6. A. a ( )7. A. look ( )8. A. find ( )9. A. find ( )10.A. surprise | B. an B. says B. to a B. to B. easily B. an B. looks B. finds B. finds B. surprised | C. the C. said C. in C. at C. hard C. the C. looking C. finding C. found C. happy | D. / D. saying D. / D. on D. easyly D. / D. looked[ D. found D. finding D. sad |